Status and phase
Conditions
Treatments
About
Background:
- In allogeneic stem cell transplantation (SCT), stem cells are taken from a donor and given to a recipient. Sometimes the recipient's immune system destroys the donors' cells. Or donor immune cells attack the recipient's tissues, called graft-versus-host disease (GVHD). This is less likely when the recipient and donor have similar human leukocyte antigens (HLA). Researchers want to see if the drug palifermin improves the results of allogeneic SCT from HLA-matched unrelated donors.
Objective:
- To see if high doses of palifermin before chemotherapy are safe, prevent chronic GVHD, and improve immune function after transplant.
Eligibility:
- Adults 18 years of age or older with blood or bone marrow cancer with no HLA-matched sibling donor, but with a HLA-matched unrelated donor.
Description of Research Study:
Full description
Background:
used in humans does not optimize its activity in terms of prevention of GVHD or thymus recovery following alloHSCT.
- We hypothesize that higher doses of palifermin in the immediate pre alloHSCT conditioning setting will lead to enhanced thymopoiesis, decreased chronic GVHD, and improved immune reconstitution. A dose escalation study is necessary to determine safe dosing levels in persons undergoing alloHSCT.
Objectives:
Eligibility:
Design:
Patients will receive disease-specific induction chemotherapy etoposide phosphate, prednisone, vincristine sulfate, cyclophosphamide, and doxorubicin hydrochloride with fludarabine and rituximab (EPOCH-F/R or fludararbine, ara-c, granulocyte colony-stimulating factor (FLAG) prior to transplant as needed for disease control and immune depletion.
All patients will receive an identical conditioning regimen consisting of cyclophosphamide 1200 mg/m^2/day intravenous (IV) for 4 days and fludarabine 30 mg/m^2/day for 4 days (transplant days -6 to -3).
All patients will receive a peripheral blood stem cell product from an unrelated donor matched at HLA-A, -B, -C, -DRB1 (8/8) by high-resolution typing.
Palifermin will be administered in a phase 1, open label design with the following proposed schedule:
The phase I portion will be conducted in a standard 3+3 design; the maximum possible number of patients accrued to this portion will be 24.
The maximum tolerated dose (MTD) from the phase I portion of the study will be used to conduct a phase II study. Total accrual on the phase II study will be 27 patients, including 3-6 patients treated at the MTD in the phase I portion of the study
Enrollment
Sex
Ages
Volunteers
Inclusion and exclusion criteria
Patients meeting below eligibility criteria are eligible to receive suitable disease specific therapy for the purposes of disease control while the donor search takes place
Research Phase Inclusion Criteria:
Verification of donor eligibility (clearance must be received from the NMDP)
Donors are evaluated by NMDP affiliated donor centers per NMDP Standards.
Donors who are ineligible or unwilling to donate bone marrow will not be eligible to donate to study recipients. However, in the event that the patient has already begun conditioning chemotherapy and a donor PBSC collection is terminated early for donor-related medical concerns, a bone marrow graft may be infused. Should this occur, the recipient will continue to be managed on this protocol for all transplant-related care and complications. Patient will stay on study, but clinical outcomes will not be eligible for the statistics and end point calculations.
Inadequate stem cell collection from the selected donor is defined as less than or equal to 2 x 10^6 cluster of differentiation 34 (CD34+) cells/kg. In most cases, donor cell collections are infused fresh. If a fresh collection is found to have an inadequate cell count, the cells will still be infused, but the recipient will be removed from the study and managed clinically for all transplant related care and complications on this protocol. If the patient fails to engraft, the donor may be requested for a second collection or an emergency bone marrow harvest at the discretion of the PI and NMDP Medical Director. In the event of an inadequate collection obtained prior to patient conditioning, the donor may be asked to donate a second time, or another eligible donor may be requested.
Renal and hepatic function continues to meet eligibility criteria, reassessed as follows:
The malignancy must be restaged prior to research phase and must not have progressed during induction chemotherapy (stable disease or better). Persons with acute leukemia, myelodysplastic syndrome (MDS)/refractory anemia with excess blasts (RAEB)-I or II or chronic myeloid leukemia (CML) with previous accelerated or blast phase must have <5% blasts in the bone marrow. Persons with chronic phase CML may have up to 10% blasts in the bone marrow.
EXCLUSION CRITERIA (applies to all phases of this protocol):
Primary purpose
Allocation
Interventional model
Masking
34 participants in 2 patient groups
Loading...
Central trial contact
Steven Z Pavletic, M.D.; Ashley E Carpenter
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal